Lua APA (7ú heag.)
HELLINCKX, W. (1998). PREFACE. EN: INTERNATIONAL PERSPECTIVES ON FAMILY SUPPORT. ARENA.
Lua i Stíl Chicago (17ú heag.)
HELLINCKX, W. PREFACE. EN: INTERNATIONAL PERSPECTIVES ON FAMILY SUPPORT. HANTS (UK): ARENA, 1998.
Lua MLA (9ú heag.)
HELLINCKX, W. PREFACE. EN: INTERNATIONAL PERSPECTIVES ON FAMILY SUPPORT. ARENA, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.